Prof. Katsuyuki Kojima Profile

Prof. Katsuyuki Kojima

Professor & Dean

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Publications (2)

Proceedings Article | 3 March 2011 Paper

Radiation dose reduction in digital radiography using wavelet-based image processing methods

Haruyuki Watanabe, Du-Yih Tsai, Yongbum Lee, Eri Matsuyama, Katsuyuki Kojima

Proceedings Volume 7966, 79661T (2011) https://doi.org/10.1117/12.877740

KEYWORDS: Image processing, Wavelets, Radiography, Modulation transfer functions, Visualization, Image filtering, Image quality, Chromium, Wavelet transforms, Neodymium

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Proceedings Article | 18 March 2008 Paper

Physical characterization of digital radiological images by use of transmitted information metric

Eri Matsuyama, Du-Yih Tsai, Yongbum Lee, Masaru Sekiya, Katsuyuki Kojima

Proceedings Volume 6913, 69130V (2008) https://doi.org/10.1117/12.768324

KEYWORDS: Imaging systems, Medical imaging, Modulation transfer functions, Image resolution, Image quality, X-rays, Image information entropy, Computer simulations, Sensors, Radiography

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